Grain-separator.



H. MARSCHEL.

GRAIN SEPABATOR.

APPLICATION FILED Nov. 29. lars.

Paten ted Sept. 19, 1916.

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HERMAN TEARSCHEL, OF BUFFALO, MINNESOTA.

GRAIN-SEPARAT OR.

masses.

Specification of Letters Patent. Patented; Sept. 19, 1916.

Application filed November 29, 1915. Serial No. 64,072.

To @ZZ whom it may concern Be it known that I, HERMAN MARSGHEL, citizen of the United States, resident of Buffalo, county of lVright, State of Minnesota, have invented certain new and useful Improvements in Grain- Separators, 0f which the following is a specification.

The object of my invention is to provide improved means for controlling the direction of flow of the air blast to the end that it may pass through or over the sieves or be partially diverted therefrom and directed through the chaffer for the purpose of carrying away the light refuse material and assisting` in the separating operation.

A further object is to provide an attachment for a separator which can be applied without material alteration in the machine.

Other objects of the invention will appear from the following detailed description.

The invention consists generally in various constructions and combinations, all

as hereinafter described and particularlyv mounted on a block 12 that is supported'v b v links 13 upon arms 14 that are mounted on a shaft 15. By rocking this shaft the' arms 14 may be raised or lowered to ele-i vate or depress the end of the plate 11 ad-l jacent to the fan. The other end of the,V plate 11 is supported on a cross bar 16 and a plate rocks on this bar as a fulcrum when the arms 14 are moved up and down to contract or enlarge the passage between the"- plate and thetop of the casing. Evidently, ifthe plate is raised to the position indicated by dotted lines this passage or throat,

A which I will indicate by numeral 17, will be nearly closed and the blast of air from the fan will be directed downwardly by the under surface of the plate toward and through the sieves while, if the plate is lowered to the position indicated by full lines,

the throat will be open sufficiently to allow a considerable portion of the air to pass between the plate'and the top of the casing. Beneath the receiving end of the chatter I provide a curved plate 18 supported by Vstraps 19 from the chatter, the inner end f air upwardly into and through the chaifer. llhemtherefore, the plate 11 is adjusted to allow thecurrents of air from the fan to pass tl'irough the throat 17, the plate 18 will deflect these air currents upwardly 'through -the chatter and carry away a considerable :portion of the light particles of refuse which would otherwise have to be taken care of by the screens beneath. I am thus able to relieve the screens of a considerable portion of their load and greatly increase the efficiency and capacity of the machine. This plate 1S being mounted on or supported by the chatter, will vibrate therewith within the shoe 3 but independently thereof and also, of course, of the plate 11, the inner end of the plate 1S sliding freely beneath the adjacent end of the plate 11.

I am able by this simple attachment to accurately control the air blast, directing it toward the sieves or toward the chatter, as preferred to effect a more rapid and better separation than is usually possible in a machine of this type.

In various ways the details of construction-herein shown and described may be modified and still be within the scope of my invention.

I claim as my invention:

1. The combination, with a vibrating chaffer and a sieve shoe arranged beneath the same and sieves moupted in said Shoe, of a fan casing having a throat for directing the blasts of air through said shoe, a detiector mounted to vibrate with said chaifer and means mounted in said throat and c0- operating with said deflector to direct a portion of the air through said chaifer, and a portion through said shoe, or substantially all of the air through saidshoe. 4

2. The combination, with a chaifer, a sieve shoe and the sieves mounted thereon, of a fan casing and fan, a deflector mounted to vibrate with said chaifer and direct the currents of air upwardly and through said chatter, and means for directing the air currents toward said detlector or into said sieves.

3. The combination, with a chatter and a' shoe and sieves therein, ot a tan casing and tan having a throat adjacent the receiving end ot said chatter and shoe, a detlecting device mounted to direct a portion ot the air trom `said tan casing into and through said chatter, and a plate mounted in said throat and lapping by said detlector and having means tor tilting it to vary the volume ot air directed into said chatter or to detiect a greater portion ot the air trom said tan casing into said shoe.

4. The combination, with a chatter and Sieve shoe and sieves, ot a curved detlector mounted adjacent to said chatter tor directing the currents ot air therethrough, a tan casing' and tan therefor, and a tilting plate mounted to torm a continuation ot said deticctor and direct the currents ot air toward the curved wall ot Said detlector or exclude the air therefrom.

5. The combination, with a chatter and a sieve shoe and the sieves mounted thereon, ot a tan casing and tan, a deector carried by said chatter and vibrating therewith and operating to direct the currents ot air upwardly into and through said chatter and a plate mounted in the throat ot said tan casing and adjustable therein tor'directing the air currents toward said detlector and upwardly into said chatter or downwardly, away, trom said detiector into said sieves.

6. The combination, with a chatter and a sieve shoe and sieves disposed beneath Said chatter and a tan casing and fans having a throat adjacent the ends ot said chatter and sieve shoe, of a detlecting device supported near one end in said throat and having means tor raising and lowering its opposite end tor tiltingsaid device to direct the air currents passing through 'said throat, and means adjacent the receiving end ot Said chatter and cooperating with rsaid deflecting device to direct a portion ot the air into and through the *receiving end ot said chatter.

In witness whereot, I have hereunto set my hand this 28rd day ot' November, 1915.

HERMAN MARscHEL.

Copies of this `patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. 

